A coupled mechano-biochemical model for cell polarity guided anisotropic root growth.

ABSTRACT: Plants develop new organs to adjust their bodies to dynamic changes in the environment. How independent organs achieve anisotropic shapes and polarities is poorly understood. To address this question, we constructed a mechano-biochemical model for Arabidopsis root meristem growth that integrates biologically plausible principles. Computer model simulations demonstrate how differential growth of neighboring tissues results in the initial symmetry-breaking leading to anisotropic root growth. Furthermore, the root growth feeds back on a polar transport network of the growth regulator auxin. Model, predictions are in close agreement with in vivo patterns of anisotropic growth, auxin distribution, and cell polarity, as well as several root phenotypes caused by chemical, mechanical, or ge

SUBMITTER: Marconi M 

PROVIDER: S-EPMC8716106 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature